Boiler air supply pipe capable of conveniently controlling air volume

Abstract

The utility model discloses a boiler air supply pipe convenient to control air volume, which comprises an air supply pipe main body and a filter cartridge, a filter screen is arranged at the center inside the filter cartridge, a flow detector is arranged on the air supply pipe main body, the flow detector and the air supply pipe main body are connected into a whole, a disc is arranged inside the air supply pipe main body, and the disc is connected with the filter screen. A first connecting rod and a second connecting rod are arranged at the two ends of the disc correspondingly, one end of the first connecting rod and one end of the second connecting rod are fixedly connected with the disc, the first connecting rod and the second connecting rod are rotationally connected with the air supply pipe body, and a servo motor is arranged outside the air supply pipe body. According to the electric precipitation ash hopper of the boiler, an air source of the electric precipitation ash hopper of the boiler is changed to be provided by compressed air, the capacity of the compressed air relative to stable and continuous air supply is far higher than that of a gasification fan, and the operation power consumption of the gasification fan and the regular maintenance cost of the gasification fan are reduced.

Description

Technical Field

[0001] This utility model relates to the field of boiler gas supply technology, specifically a boiler gas supply pipe that facilitates air volume control. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy. Boiler air supply is a crucial aspect of boiler operation, affecting combustion efficiency and safety. It is mainly divided into natural air supply, forced air supply, and mixed air supply methods. Selecting a suitable air supply method and designing a scientific air supply system are of great significance for improving boiler operating efficiency and safety. Failure or damage to the gasification fan can easily lead to poor ash discharge from the electrostatic precipitator's ash hopper pump, and in severe cases, can cause the electrostatic precipitator to trip, resulting in environmental incidents. To ensure the safe and stable operation of the electrostatic precipitator, the air source for the boiler's electrostatic precipitator ash hopper has been changed to compressed air.

[0003] Chinese Patent Publication No. CN204664872U, authorized on September 23, 2015, discloses a novel boiler gas supply pipeline, which includes a controller and a detection section embedded in the pipeline body. The detection section includes a flow detector, which is connected to the controller via signal transmission. This invention breaks through the traditional construction of boiler gas supply pipelines by removing a section of the pipeline body and replacing it with a detection section of appropriate size embedded in series. In actual operation, the flow detector in the detection section can detect the steam flow rate in the pipeline body and transmit the flow signal to the controller for storage and analysis. This overcomes the shortcomings of traditional boiler gas supply pipelines, which have a simple and crude structure and cannot perform statistical calculations on parameters such as steam consumption, steam generation efficiency, and cost. Therefore, this invention can effectively detect steam flow rate, facilitating statistical and calculation operations by staff, and is highly practical.

[0004] The existing gas supply pipelines directly supply gas to the corresponding workshops and other locations. The pipelines are highly independent, with a simple and crude structure. It is impossible to count the steam flow rate or calculate the relationship between coal consumption and steam generation. Consequently, systematic accounting of energy loss and cost cannot be achieved, causing considerable obstacles and troubles for factory management and staff. The pipelines are not practical and cannot meet the usage requirements. Utility Model Content

[0005] The purpose of this utility model is to provide a boiler gas supply pipe that facilitates the control of air volume, in order to solve the problems mentioned in the background art, such as the existing gas supply pipes directly supplying gas to corresponding workshops and other places, the pipes being highly independent, having a simple and crude structure, being unable to count steam flow or calculate the relationship between coal consumption and steam production, and thus being unable to systematically calculate energy loss and cost, causing considerable work obstacles and troubles for factory management and staff, poor practicality, and failing to meet the needs of use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a boiler gas supply pipe for easy air volume control, comprising a gas supply pipe body and a filter cylinder, wherein a filter screen is provided at the center of the filter cylinder and the filter screen is integrated with the filter cylinder; a flow detector is provided on the gas supply pipe body and is integrated with the gas supply pipe body; a disc is provided inside the gas supply pipe body, and a first connecting rod and a second connecting rod are respectively provided at both ends of the disc, and one end of the first connecting rod and the second connecting rod is fixedly connected to the disc; the first connecting rod and the second connecting rod are rotatably connected to the gas supply pipe body; a servo motor is provided outside the gas supply pipe body and is connected to the gas supply pipe body by screws; the output end of the servo motor is connected to the other end of the second connecting rod.

[0007] Preferably, an O-ring is provided on the outside of the disc, and the O-ring is integrated with the disc. The O-ring is in contact with the inner wall of the air supply pipe body. A sealing ring is provided at the connection between the second connecting rod and the air supply pipe body, and the sealing ring is located on the outside of the second connecting rod.

[0008] Preferably, the filter cartridge has two assembly holes at both ends. The upper end of the air supply pipe body has a threaded hole, which corresponds to the assembly hole. A connecting bolt is provided inside the assembly hole, which corresponds to the threaded hole. The connecting bolt is threadedly connected to the air supply pipe body.

[0009] Preferably, a rubber sleeve is provided on the outside of one end of the air supply pipe body, and the rubber sleeve is integrated with the air supply pipe body, and the rubber sleeve is in contact with the inner wall of the filter cylinder.

[0010] Preferably, the bottom of the filter cylinder is provided with positioning strips, there are two positioning strips, and the two positioning strips are located on both sides of the filter screen. The positioning strips are fixedly connected to the filter cylinder. The lower end of the air supply pipe body is provided with a slot, and the slot is correspondingly provided with the positioning strip. The positioning strip is slidably connected to the air supply pipe body.

[0011] Preferably, a temperature detector is provided on the outside of the main body of the gas supply pipe, and the temperature detector is integrated with the main body of the gas supply pipe.

[0012] Preferably, a connecting strip is provided at the lower end of the filter cartridge, and the connecting strip is fixedly connected to the filter cartridge. A leakage sensor is provided below the filter cartridge, and a connecting groove is provided at the upper end of the leakage sensor, and the connecting groove is correspondingly provided with the connecting strip. The connecting strip is slidably connected to the leakage sensor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model device, through the arrangement of a servo motor, a disc, a second connecting rod, and a flow detector, drives the second connecting rod to rotate. As the second connecting rod rotates, it drives the disc to rotate. When the disc is perpendicular to the air supply pipe, the air supply pipe is closed. When the disc is tilted to the air supply pipe, the air supply pipe is opened to supply air. The flow detector measures the gas flow rate in the air supply pipe. Based on the measured flow rate, the servo motor is controlled to change the tilt angle between the disc and the air supply pipe, thereby changing the size of the air supply port and facilitating air volume control.

[0015] 2. This utility model device, through the arrangement of a filter cylinder, connecting bolt, rubber sleeve, filter screen, positioning strip, and slot, connects the filter cylinder to the gas supply pipe. The filter screen filters the gas flowing through it, removing impurities and ensuring the quality of the gas supplied to the boiler. The connecting bolt limits the connection between the gas supply pipe body and the filter cylinder. The rubber sleeve fills the gap between the gas supply pipe body and the filter cylinder. The positioning strip is aligned with the slot and inserted to position the connected gas supply pipe body, improving the connection effect between the gas supply pipe body and the filter cylinder and facilitating the subsequent removal, cleaning, and replacement of the filter cylinder.

[0016] 3. This utility model device, through the setting of connecting strip, air leakage sensor and connecting groove, the connecting strip is inserted into the connecting groove, the air leakage sensor is installed with the filter cartridge, the air leakage sensor detects air leakage in the air supply pipe, and triggers an alarm when air leakage occurs in the air supply pipe, thereby improving the safety of the air supply pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a diagram showing the connection relationship between the main body of the air supply pipe and the filter cartridge of this utility model;

[0019] Figure 3 This is a diagram showing the connection relationship between the disc and the main body of the air supply pipe in this utility model;

[0020] Figure 4 This is a front view structural diagram of the filter cartridge of this utility model;

[0021] Figure 5 This is a structural diagram of one end of the main body of the gas supply pipe of this utility model.

[0022] In the diagram: 1. Air supply pipe body; 2. Filter cartridge; 3. Connecting strip; 4. Leakage sensor; 5. Connecting groove; 6. Connecting bolt; 7. Servo motor; 8. Rubber sleeve; 9. Temperature detector; 10. Flow detector; 11. Filter screen; 12. Disc; 13. O-ring; 14. First connecting rod; 15. Sealing ring; 16. Assembly hole; 17. Positioning strip; 18. Threaded hole; 19. Slot; 20. Second connecting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5 This utility model provides an embodiment of a boiler gas supply pipe for easy airflow control, comprising a gas supply pipe body 1 and a filter cylinder 2. A filter screen 11 is disposed at the center of the filter cylinder 2, and the filter screen 11 is integrally connected to the filter cylinder 2. A flow detector 10 is disposed on the gas supply pipe body 1, and the flow detector 10 is integrally connected to the gas supply pipe body 1. A disc 12 is disposed inside the gas supply pipe body 1, and a first connecting rod 14 and a second connecting rod 20 are respectively disposed at both ends of the disc 12, and one end of the first connecting rod 14 and the second connecting rod 20 is fixed to the disc 12. The first connecting rod 14 and the second connecting rod 20 are rotatably connected to the air supply pipe body 1. A servo motor 7 is provided on the outside of the air supply pipe body 1, and the servo motor 7 is connected to the air supply pipe body 1 by screws. The output end of the servo motor 7 is connected to the other end of the second connecting rod 20. An O-ring 13 is provided on the outside of the disc 12, and the O-ring 13 is connected to the disc 12 as a whole. The O-ring 13 fits against the inner wall of the air supply pipe body 1. A sealing ring 15 is provided at the connection between the second connecting rod 20 and the air supply pipe body 1, and the sealing ring 15 is located on the outside of the second connecting rod 20.

[0025] In use: Connect both ends of the air supply pipe to the compressed air main pipe and the boiler respectively. Turn on the servo motor 7 to drive the second connecting rod 20 to rotate. As the second connecting rod 20 rotates, the disc 12 rotates. When the disc 12 is perpendicular to the air supply pipe, the air supply pipe is closed. When the disc 12 is tilted to the air supply pipe, the air supply pipe is opened to supply air. The filter screen 11 filters the gas in the flow path to remove impurities and ensure the quality of the gas sent into the boiler. The flow detector 10 measures the gas flow rate in the air supply pipe. Based on the measured flow rate, control the servo motor 7 to change the tilt angle between the disc 12 and the air supply pipe, thereby changing the size of the air supply port and facilitating air volume control.

[0026] Please see Figure 1 , Figure 2 and Figure 5 The filter cylinder 2 has two assembly holes 16 at both ends. The upper end of the air supply pipe body 1 has a threaded hole 18, which corresponds to the assembly hole 16. A connecting bolt 6 is installed inside the assembly hole 16, corresponding to the threaded hole 18. The connecting bolt 6 is threadedly connected to the air supply pipe body 1. A rubber sleeve 8 is installed on the outside of one end of the air supply pipe body 1, and the rubber sleeve 8 is integrally connected to the air supply pipe body 1. The rubber sleeve 8 fits snugly against the inner wall of the filter cylinder 2. A positioning strip 17 is installed at the bottom of the filter cylinder 2. There are two positioning strips 17, which are set on both sides of the filter screen 11. The positioning strips 17 are fixedly connected to the filter cylinder 2. The lower end of the air supply pipe body 1 is provided with a slot 19, and the slot 19 is correspondingly set with the positioning strip 17. The positioning strip 17 is slidably connected to the air supply pipe body 1. The connecting bolt 6 limits the connection between the air supply pipe body 1 and the filter cylinder 2. The rubber sleeve 8 fills the gap between the air supply pipe body 1 and the filter cylinder 2. The positioning strip 17 is inserted into the slot 19 to position the connected air supply pipe body 1 and improve the connection effect between the air supply pipe body 1 and the filter cylinder 2.

[0027] Please see Figure 1 and Figure 2 A temperature detector 9 is installed on the outside of the gas supply pipe body 1, and the temperature detector 9 is connected to the gas supply pipe body 1 as a whole. The temperature detector 9 measures the gas temperature in the gas supply pipe body 1.

[0028] Please see Figure 1 and Figure 2 A connecting strip 3 is provided at the lower end of the filter cartridge 2, and the connecting strip 3 is fixedly connected to the filter cartridge 2. A leak sensor 4 is provided at the lower part of the filter cartridge 2, and a connecting groove 5 is provided at the upper end of the leak sensor 4. The connecting groove 5 is correspondingly set with the connecting strip 3. The connecting strip 3 is slidably connected to the leak sensor 4. The connecting strip 3 is inserted into the connecting groove 5 to install the leak sensor 4 and the filter cartridge 2. The leak sensor 4 detects leaks in the air supply pipe and triggers an alarm when a leak occurs in the air supply pipe, thereby improving the safety of the air supply pipe.

[0029] Working principle: Connect both ends of the air supply pipe to the compressed air main pipe and the boiler respectively. Turn on the servo motor 7 to drive the second connecting rod 20 to rotate. As the second connecting rod 20 rotates, the disc 12 rotates. When the disc 12 is perpendicular to the air supply pipe, the air supply pipe is closed. When the disc 12 is tilted to the air supply pipe, the air supply pipe is opened to supply air. The filter screen 11 filters the gas in the flow path, removing impurities and ensuring the quality of the gas sent to the boiler. The flow detector 10 measures the gas flow rate in the air supply pipe. Based on the measured flow rate, the servo motor 7 is controlled to change the tilt angle between the disc 12 and the air supply pipe, thereby changing the air supply port size for easy air volume control. The temperature detector 9 measures the gas temperature in the main body 1 of the air supply pipe. The connecting strip 3 is inserted into the connecting groove 5, and the leak sensor 4 is installed with the filter cylinder 2. The leak sensor 4 detects leaks in the air supply pipe and triggers an alarm when a leak occurs, improving the safety of the air supply pipe.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A boiler air supply pipe for easy air volume control, comprising an air supply pipe body (1) and a filter cartridge (2), characterized in that: A filter screen (11) is provided at the center of the filter cylinder (2), and the filter screen (11) is connected to the filter cylinder (2) as a whole. A flow detector (10) is provided on the air supply pipe body (1), and the flow detector (10) is connected to the air supply pipe body (1) as a whole. A disc (12) is provided inside the air supply pipe body (1). A first connecting rod (14) and a second connecting rod (20) are respectively provided at both ends of the disc (12). One end of the first connecting rod (14) and the second connecting rod (20) are fixedly connected to the disc (12). The first connecting rod (14) and the second connecting rod (20) are rotatably connected to the air supply pipe body (1). A servo motor (7) is provided outside the air supply pipe body (1), and the servo motor (7) is connected to the air supply pipe body (1) by screws. The output end of the servo motor (7) is connected to the other end of the second connecting rod (20).

2. The boiler gas supply pipe for easy air volume control according to claim 1, characterized in that: An O-ring (13) is provided on the outside of the disc (12), and the O-ring (13) is connected to the disc (12) as a whole. The O-ring (13) is in contact with the inner wall of the air supply pipe body (1). A sealing ring (15) is provided at the connection between the second connecting rod (20) and the air supply pipe body (1), and the sealing ring (15) is located on the outside of the second connecting rod (20).

3. A boiler gas supply pipe for easy air volume control according to claim 1, characterized in that: The filter cylinder (2) has two assembly holes (16) at both ends. The upper end of the air supply pipe body (1) has a threaded hole (18) and the threaded hole (18) is corresponding to the assembly hole (16). The assembly hole (16) has a connecting bolt (6) inside and the connecting bolt (6) is corresponding to the threaded hole (18). The connecting bolt (6) is threadedly connected to the air supply pipe body (1).

4. A boiler gas supply pipe for easy air volume control according to claim 1, characterized in that: A rubber sleeve (8) is provided on the outside of one end of the air supply pipe body (1), and the rubber sleeve (8) is connected to the air supply pipe body (1) as a whole. The rubber sleeve (8) is in contact with the inner wall of the filter cylinder (2).

5. A boiler gas supply pipe for easy air volume control according to claim 1, characterized in that: The bottom of the filter cylinder (2) is provided with a positioning strip (17). There are two positioning strips (17), and the two positioning strips (17) are set on both sides of the filter screen (11). The positioning strips (17) are fixedly connected to the filter cylinder (2). The lower end of the air supply pipe body (1) is provided with a slot (19), and the slot (19) is correspondingly set with the positioning strips (17). The positioning strips (17) are slidably connected to the air supply pipe body (1).

6. A boiler air supply pipe for easy air volume control according to claim 1, characterized in that: A temperature detector (9) is provided on the outside of the gas supply pipe body (1), and the temperature detector (9) is connected to the gas supply pipe body (1) as a whole.

7. A boiler gas supply pipe for easy air volume control according to claim 1, characterized in that: The filter cylinder (2) is provided with a connecting strip (3) at its lower end, and the connecting strip (3) is fixedly connected to the filter cylinder (2). A leakage sensor (4) is provided below the filter cylinder (2). A connecting groove (5) is provided at the upper end of the leakage sensor (4), and the connecting groove (5) is correspondingly provided to the connecting strip (3). The connecting strip (3) is slidably connected to the leakage sensor (4).

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